M-type star · red

Tau² Aqr

Tau² Aqr is a red in the constellation Aquarius 318 ly from Earth. Its surface is about 3,691 K, about 0.6 times the Sun's surface temperature, and it shines at 198× the Sun's brightness. At magnitude 4.0 it is bright enough to see with the naked eye; the light you see left it 318 years ago.

318 lybrightness mag 4.05K5III

Also catalogued as HR 8679 · HD 216032 · HIP 112716

3,691 K
temperature
4.05
apparent magnitude
198× ☉
luminosity vs Sun
K5III
spectral type
Distance & comparison with our Sun
318 years
at light speed from Earth
0.64×
as hot as the Sun
198×
the Sun's light output
-0.89
absolute magnitude
Explore from here · roam the neighborhood
Tau² AqrM-type
Sky regionAquariusthis direction
StarTau¹ Aqr3.6 ly
StarHR 881636 ly
StarSigma Aqr40 ly
StarSadalsuudstar
StarSadalmelikstar
Nearest stars
Bright stars in Aquarius
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 4.0To see it no equipment neededLook toward Aquarius

Star data from the HYG database v4.2 (Astronexus, CC BY-SA 4.0). Temperature and colour computed by gravityfinder from the B-V colour index; the illustration is generated from that temperature, not a photograph.